Spectroscopic visualization of vortex flows using dye-containing nanofibers

Akihiko Tsuda; Md Akhtarul Alam; Takayuki Harada; Tatsuya Yamaguchi; Noriyuki Ishii; Takuzo Aida

doi:10.1002/anie.200703083

Spectroscopic visualization of vortex flows using dye-containing nanofibers

Akihiko Tsuda, Md Akhtarul Alam, Takayuki Harada, Tatsuya Yamaguchi, Noriyuki Ishii, Takuzo Aida

Research output: Contribution to journal › Article › peer-review

207 Citations (Scopus)

Abstract

Which way around? A J-aggregated zinc porphyrin dendrimer can be used to detect the macroscopic chirality of a vortex. The sign of the circular dichroism response changes quickly upon switching from clockwise (CW) to counterclockwise (CCW) stirring (see picture). The observed chiroptical activity most likely arises from a macroscopic helical alignment of nanofibers formed from the polymeric J-aggregate. (Chemical Equation Presented).

Original language	English
Pages (from-to)	8198-8202
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	46
Issue number	43
DOIs	https://doi.org/10.1002/anie.200703083
Publication status	Published - 2007
Externally published	Yes

Keywords

Chirality
Circular dichroism
Dendrimers
Porphyrinoids
Vortices

ASJC Scopus subject areas

Catalysis
Chemistry(all)

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10.1002/anie.200703083

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keywords = "Chirality, Circular dichroism, Dendrimers, Porphyrinoids, Vortices",

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AU - Alam, Md Akhtarul

AU - Harada, Takayuki

AU - Yamaguchi, Tatsuya

AU - Ishii, Noriyuki

AU - Aida, Takuzo

PY - 2007

Y1 - 2007

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AB - Which way around? A J-aggregated zinc porphyrin dendrimer can be used to detect the macroscopic chirality of a vortex. The sign of the circular dichroism response changes quickly upon switching from clockwise (CW) to counterclockwise (CCW) stirring (see picture). The observed chiroptical activity most likely arises from a macroscopic helical alignment of nanofibers formed from the polymeric J-aggregate. (Chemical Equation Presented).

KW - Chirality

KW - Circular dichroism

KW - Dendrimers

KW - Porphyrinoids

KW - Vortices

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Spectroscopic visualization of vortex flows using dye-containing nanofibers

Abstract

Keywords

ASJC Scopus subject areas

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